Kavli Affiliate: Chris Xu| First 5 Authors: BESIII Collaboration, BESIII Collaboration, , , | Summary:Using a data sample of $(2.712 pm 0.014)times10^9$ $ψ(3686)$ events collected at $sqrts=3.686$ GeV by the BESIII detector, we search for the rare electromagnetic Dalitz decays $χ_cJto e^+e^-φ~(J=0,,1,,2)$ via the radiative transitions $ψ(3686)toγχ_cJ$. No statistically significant $χ_cJto e^+e^-φ$ signals are observed. […]
Kavli Affiliate: Zhiting Tian | First 5 Authors: Hanlin Zhu, Hanlin Zhu, , , | Summary: Previous work shows that the chain of continuous thought (continuous CoT) improves the reasoning capability of large language models (LLMs) by enabling implicit parallel thinking, and a subsequent work provided theoretical insight by showing that a two-layer transformer equipped […]
Kavli Affiliate: Feng Yuan | First 5 Authors: Wanjin Feng, Wanjin Feng, , , | Summary: In the era of increasingly complex AI models for time series forecasting, progress is often measured by marginal improvements on benchmark leaderboards. However, this approach suffers from a fundamental flaw: standard evaluation metrics conflate a model’s performance with the […]
Kavli Affiliate: Robert Edwards | Authors: Jacob Kelman, Meena Khan, Chibundu Umunna, Russell Brainard, Grace Donohue, Robert A Edwards, Natalie A Falta, Emma E. George, Eleanor Gorham, Juris Grasis, Kevin Green, Andreas F Haas, Kimberly Halsey, Eric Hester, Summer Jacob, Aydin Loid Karatas, Yan Wei Lim, Mark Little, Stuart Sandin, Jessie Segnitz, Maya Serota, Natalia […]
Kavli Affiliate: Max Tegmark | Summary:We present and test the largest benchmark for vericoding, LLM-generation of formally verified code from formal specifications – in contrast to vibe coding, which generates potentially buggy code from a natural language description. Our benchmark contains 12,504 formal specifications, with 3,029 in Dafny, 2,334 in Verus/Rust and 7,141 in Lean. […]
Kavli Affiliate: Dheeraj Pasham | Summary:GRB 250702B is an exceptional transient that produced multiple episodes of luminous gamma-ray radiation lasting for $>25$ ks, placing it among the class of ultra-long gamma-ray bursts (GRBs). However, unlike any known GRB, the textitEinstein Probe detected soft X-ray emission up to 24 hours before the gamma-ray triggers. We present […]
Kavli Affiliate: Dheeraj Pasham | Summary:GRB 250702B was the longest gamma-ray burst ever detected, with a duration that challenges standard collapsar models and suggests an exotic progenitor. We collected a rich set of optical and infrared follow-up observations of its rapidly fading afterglow using a suite of telescopes including the W. M. Keck Observatory, the […]
Kavli Affiliate: Eli Rykoff | Summary:We investigate a splashback-like feature in the outer region of central galaxies (CGs) in clusters. This feature is detected as a "dip" in the radial slope of the CG surface brightness, derived through the stacking of Dark Energy Survey data of over 4000 galaxy clusters in the redshift range of […]
Kavli Affiliate: Eli Rykoff | Summary:We investigate a splashback-like feature in the outer region of central galaxies (CGs) in clusters. This feature is detected as a "dip" in the radial slope of the CG surface brightness, derived through the stacking of Dark Energy Survey data of over four thousand galaxy clusters in the redshift range […]
Kavli Affiliate: Eli S. Rykoff | First 5 Authors: Yuanyuan Zhang, Yuanyuan Zhang, , , | Summary: We investigate a splashback-like feature in the outer region of central galaxies (CGs) in clusters. This feature is detected as a "dip" in the radial slope of the CG surface brightness, derived through the stacking of Dark Energy […]